四通路28Gbps TIA + CDR + LA；；；；；-12dBm典型活络度，，，，，，LOS阈值可编程；；；；；均匀光电流监督；；；；；输出摆幅可编程及去加沉职能。。。。。。

4 Channel 28Gbps TIA + CDR + LA; -12dBm typical sensitivity.High-sensitivity limiting amplifier with programmable LOS threshold.Average photodiode current monitor,

Programmable output swing and de-emphasis.